How should one proceed to empty an acidic water tank for major maintenance?
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For example, work is about to stop now. The acidic water in the acidic water tank has been pumped up to a level of around 400 or 500 mm. Since it can no longer be pumped back, what should be done? O(∩_∩)O Thank you
The stripped and purified water is diluted before being drawn out, and this process is repeated multiple times. Alternatively, the water can be continuously washed using stripped and purified water; what remains at the end is water with a very low concentration, which can then be discharged by opening the drain at the bottom of the tank.
The purified water we design now also doesn’t have pipes leading back to the acidic water tank. How on earth did you design it?
The process of returning purified water to the acidic water tank is necessary. At the beginning of operation of the unit, unqualified purified water must be returned to the large tank.
Without pipelines that allow substandard purified water to return to the acidic water tank, it is only possible to pour fresh water or fire-fighting water into the tank to dilute it; once the water in the tank meets the required standards, it can then be discharged.
I just checked the PID values for a few reference projects, and indeed all of them have return lines for untreated purified water – some of this water goes into large tanks, while some goes into the pipes behind those tanks. I hadn’t paid much attention to this before; thanks, buddy
Got it. It was mentioned before that some waste alkali should be added for neutralization. Thanks, mate
I’m worried that some jars may contain too much sludge, and just using purified water might not be enough to clean them thoroughly